| Bolsward to Siran | 1,801.91 mi (2,899.90 km) |
| Bolsward to Sirnak | 2,058.57 mi (3,312.96 km) |
| Bolsward to Sirvan | 2,015.72 mi (3,243.98 km) |
| Bolsward to Sivas | 1,738.58 mi (2,797.97 km) |
| Bolsward to Sivasli | 1,526.06 mi (2,455.95 km) |
| Bolsward to Siverek | 1,923.55 mi (3,095.66 km) |
| Bolsward to Sivrice | 1,890.02 mi (3,041.69 km) |
| Bolsward to Sivrihisar | 1,543.82 mi (2,484.54 km) |
| Bolsward to Sogut | 1,465.56 mi (2,358.59 km) |
| Bolsward to Sogutlu | 1,433.49 mi (2,306.98 km) |
| Bolsward to Soke | 1,487.10 mi (2,393.26 km) |
| Bolsward to Solhan | 1,934.68 mi (3,113.57 km) |
| Bolsward to Soma | 1,416.51 mi (2,279.65 km) |
| Bolsward to Sorgun | 1,664.43 mi (2,678.65 km) |
| Bolsward to Suhut | 1,554.30 mi (2,501.41 km) |
